CN101356072A - Device for controlling electric motor, electric vehicle with the device, and method for controlling electric motor - Google Patents
Device for controlling electric motor, electric vehicle with the device, and method for controlling electric motor Download PDFInfo
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- CN101356072A CN101356072A CNA2006800509157A CN200680050915A CN101356072A CN 101356072 A CN101356072 A CN 101356072A CN A2006800509157 A CNA2006800509157 A CN A2006800509157A CN 200680050915 A CN200680050915 A CN 200680050915A CN 101356072 A CN101356072 A CN 101356072A
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/60—Controlling or determining the temperature of the motor or of the drive
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
When a torque command (TR) is greater than a threshold and a vehicle speed (SV) is lower than a threshold, an upper limit temperature setting section (202) sets the upper limit temperature of a motor generator to an upper limit temperature (TS2) that is higher than an upper limit (TS1) that is a normal set value. A torque limit control section (204) performs torque limiting control of the motor generator based on a motor temperature (T) and an upper limit temperature set by the upper limit temperature setting section (202).
Description
Technical field
The method of relate generally to electric machinery control device of the present invention, the battery-driven car of equipping it and control motor, and relate to control particularly and be installed in elec. vehicle, motor vehicle driven by mixed power, fuel-cell vehicle and other battery-driven car equipment as the motor of propulsion source, the method for equipping its battery-driven car and control motor.
Background technology
Japanese Patent alerting bulletin No.2003-304604 discloses a kind of equipment, and its driving is mounted the motor as the drive source of the vehicle of elec. vehicle, motor vehicle driven by mixed power, fuel-cell vehicle and other type.
In this equipment, equal or be higher than range of temperatures, the then output of motor output-controlling device restriction motor if temperature-detecting device detects the temperature of motor.At this, the device that is used for the detected temperatures rate of change detects the rate temperature change of motor, and revises the range of temperatures setting according to detected rate of change.
More specifically, if the rate temperature change of motor is equal to, or greater than predetermined rate of change, the device that then is used for the detected temperatures rate of change judges that the temperature of motor has big rising, correspondingly, this device is set at first range of temperatures with current range of temperatures, and when motor reaches first range of temperatures or higher temperature, the output of motor output-controlling device restriction motor.
On the contrary, if the rate temperature change of motor is less than predetermined rate of change, the device that then is used for the detected temperatures rate of change judges that the temperature of motor has little rising, correspondingly, this device is set at current range of temperatures second range of temperatures that is higher than first range of temperatures, and when motor reaches first range of temperatures or higher temperature, the output of motor output-controlling device restriction motor.
This equipment allows vehicle longer distance of travelling under the situation of the output that does not limit motor, can prevent that motor from avoiding high temperature, and allow motor fully to represent its performance.
But disclosed motor driving apparatus is only from preventing that motor from avoiding high temperature limits motor according to the rate of change of motor temperature output among the Japanese Patent alerting bulletin No.2003-304604.It does not consider the state of vehicle.
For example, in the time of when vehicle is in wherein it in climbing, may slipping the state on slope, at first and the most important thing is the state that avoid such.Above-mentioned motor driving apparatus may prevent preferentially that motor from avoiding high temperature, strictly limits the output of motor no matter whether vehicle is in such state.Therefore, utilize above-mentioned motor driving apparatus, it may slip the possibility on slope vehicle when climbing.
Summary of the invention
Finish the present invention and overcome above-mentioned shortcoming.
The purpose of this invention is to provide a kind of electric machinery control device that can limit the output of motor according to the state of the vehicle that motor wherein is installed.
Another object of the present invention provides a kind of battery-driven car, and it is equipped with the electric machinery control device of the output of the motor that can limit vehicle according to the state of vehicle.
Another object of the present invention provides a kind of method of controlling motor, and it can limit the output of motor according to the state of the vehicle that wherein is equipped with motor.
According to the present invention, electric machinery control device control produces the motor of the power of powered vehicle, and comprises: temperature detecting unit is used to detect the temperature of described motor; Torque limiter is used for limiting the torque of described motor based on the described temperature that is detected by described temperature detecting unit and the temperature upper limit of described motor; And the unit is set, it is used for determining based on the state of described vehicle the described temperature upper limit of described motor, and determined temperature upper limit is set in described torque limiter.
This electric machinery control device comprises torque limiter, and it limits motor torque based on temperature upper limit, and described temperature upper limit is determined based on the state of the vehicle that is equipped with motor.Therefore, if for example vehicle is in it at the climbing and the sloping state that may slip, promptly be in the state that preferably should be avoided, the temperature upper limit of setting can be enhanced, to relax the restriction to motor torque.
Therefore, this electric machinery control device can be so that avoid the possibility on vehicle slide slope when climbing to improve.
Preferably, the described state of described vehicle comprises at least one in the speed of described vehicle, described torque and the shift pattern.
Preferably, when described torque was lower than second threshold value greater than first threshold and described speed, the described unit that is provided with was provided with second temperature upper limit in described torque limiter, and described second temperature upper limit is higher than first temperature upper limit of normal setting.
The state that torque is lower than second threshold value greater than first threshold and speed is considered to vehicle wherein, and it may slip the state on slope when climbing.Electric machinery control device of the present invention comprises the unit is set, and the described unit that is provided with can be provided with second temperature upper limit in described torque limiter, and described second temperature upper limit is higher than first temperature upper limit of normal setting.Therefore, the temperature upper limit of setting can be enhanced, and can relax the restriction to the torque of motor.
Therefore, this electric machinery control device can be so that avoid the possibility on vehicle slide slope to improve.
In addition, preferably, when described shift pattern was in the reverse gear scope, the described unit that is provided with was provided with second temperature upper limit in described torque limiter, and described second temperature upper limit is higher than first temperature upper limit of normal setting.
This electric machinery control device comprises the unit is set, and the described unit that is provided with can be provided with second temperature upper limit for the shift pattern that is in the reverse gear scope in described torque limiter, and described second temperature upper limit is higher than first temperature upper limit of normal setting.Therefore, the temperature upper limit of setting can be enhanced, and can relax the restriction to the torque of motor.
Therefore, this electric machinery control device can be so that avoid the possibility on vehicle slide slope when afterbody had before been advanced climbing to improve.
In addition, according to the present invention, electric machinery control device control produces the motor of the power of powered vehicle, and comprises: temperature detecting unit is used to detect the temperature of described motor; Torque limiter is used for based on the described temperature that is detected by described temperature detecting unit and the temperature upper limit of described motor, with the torque that reduces the described motor of rate limitation in the unit time that is provided with; And the unit is set, it is used for determining to reduce speed based on the state of described vehicle, and the determined speed that reduces is set in described torque limiter.
This electric machinery control device comprises torque limiter, and it can be with the torque that reduces the rate limitation motor in certain unit time, reduces that state that speed is based on the vehicle that is equipped with motor determines in the described unit time.
Therefore, if for example vehicle is in it at the climbing and the sloping state that may slip, promptly be in the state that preferably should be avoided, the described speed that reduces for example can be reduced, to relax the restriction to motor torque.
Therefore, this electric machinery control device can be so that avoid the possibility on vehicle slide slope when climbing to improve.
Preferably, the described state of described vehicle comprises at least one in the speed of described vehicle, described torque and the shift pattern.
Preferably, when described torque limiter reduced described torque, described torque limiter was reduced to described torque the limit of being determined by described detected temperature; And when described torque is lower than second threshold value greater than first threshold and described speed, the described unit that is provided with is provided with the described speed that reduces in described torque limiter, make left described torque begin to reduce after to described torque reach described limit before the elapsed time segment length in normal circumstances.
The state that torque is lower than second threshold value greater than first threshold and speed is considered to vehicle wherein, and it may slip the state on slope when climbing.This electric machinery control device comprises the unit is set, and the described unit that is provided with can be provided with in torque limiter and reduces speed, make after described torque begins to reduce reach described limit to described torque before the elapsed time segment length in normal circumstances.Therefore, can relax restriction to the torque of electrical motor.
Therefore, this electric machinery control device can be so that avoid the possibility on vehicle slide slope to improve.
Preferably, when described torque limiter reduced described torque, described torque limiter was reduced to described torque the limit of being determined by described detected temperature; And when described shift pattern is in the reverse gear scope, the described unit that is provided with is provided with the described speed that reduces in described torque limiter, make after described torque begins to reduce reach described limit to described torque before the elapsed time segment length in normal circumstances.
This electric machinery control device comprises the unit is set, the described unit that is provided with can be provided with the described speed that reduces for the shift pattern that is in the reverse gear scope in described torque limiter, make after described torque begins to reduce reach described limit to described torque before the elapsed time segment length in normal circumstances.Therefore, can relax restriction to the torque of electrical motor.
Therefore, this electric machinery control device can be so that avoid the possibility on vehicle slide slope when afterbody had before been advanced climbing to improve.
Preferably, when described torque is lower than second threshold value greater than first threshold and described speed, perhaps when shift pattern is in the reverse gear scope, the described unit that is provided with is provided with second and reduces speed in described torque limiter, described second reduces speed is lower than first of normal setting and reduces speed.
This motor control assembly comprises the unit is set, and the described unit that is provided with can be provided with second and reduces speed in described torque limiter, and described second reduces speed is lower than first of normal setting and reduces speed.This assurance is relaxed to the restriction of motor torque.
Therefore, this electric machinery control device can be so that avoid the possibility on vehicle slide slope further to improve.
In addition, preferably, when described torque is lower than second threshold value greater than first threshold and described speed, perhaps when shift pattern is in the reverse gear scope, and when described torque begins to reduce, the described unit that is provided with at first is provided with in described torque limiter and is higher than first of normal setting and reduces the 3rd of speed and reduce speed, is provided with subsequently to be lower than first of normal setting and to reduce the 4th of speed and reduce speed in described torque limiter.
This electric machinery control device comprises the unit is set, and the described unit that is provided with can be provided with in described torque limiter when torque begins to reduce and is higher than first of normal setting and reduces the 3rd of speed and reduce speed.Therefore, at first, the intensification of motor is reduced or prevents.After this, the unit being set is provided with in described torque limiter and is lower than described first and reduces the 4th of speed and reduce speed.This time period that guarantees that the motor torque utilization increases is reduced to torque limit.
Therefore, this electric machinery control device can reduce or prevent the intensification of motor when vehicle is climbed, and makes the vehicle of climbing can avoid slipping the possibility on slope to improve.
In addition, according to the present invention, battery-driven car comprises: motor, and it produces the power of powered vehicle; Wheel, the output shaft mechanical connection of itself and described motor; And aforesaid any electric machinery control device.
Therefore, battery-driven car of the present invention can be so that avoid the possibility on vehicle slide slope when climbing to improve.
In addition, according to the present invention, the method for control motor is to control the method for the motor of the power that produces powered vehicle, and comprises the first step and second step.First step is the state based on described vehicle, determines the temperature upper limit of described motor.Second step limits the torque of described motor for temperature and described temperature upper limit based on the described motor that is detected.
Therefore, the present invention can limit motor torque according to temperature upper limit, and described temperature upper limit is determined according to the state that wherein is equipped with the vehicle of motor.If for example vehicle is in it at the climbing and the sloping state that may slip, if promptly vehicle is in the state that preferably should be avoided, the temperature upper limit of setting can be enhanced, to relax the restriction to motor torque.
In addition, the present invention can be with the torque that reduces the rate limitation motor in certain unit time, and the described speed that reduces is determined according to the state that the vehicle of motor wherein is installed.If for example vehicle is in it at the climbing and the sloping state that may slip, if promptly vehicle is in the state that preferably should be avoided, reduces speed and for example can be lowered, to relax restriction to motor torque.
Therefore, the present invention can so that the vehicle of climbing avoid slipping the possibility on slope and improve.
Description of drawings
Fig. 1 is the block diagram that summarily shows the transmission system of the battery-driven car in the first embodiment of the invention.
Fig. 2 is the functional block diagram of ECU shown in Figure 1.
Fig. 3 shows the view by the torque of torque limitation control unit restriction dynamotor shown in Figure 2.
Fig. 4 shows the view by another method of torque limitation control unit torque-limiting.
Fig. 5 is the diagram of circuit of being controlled by the torque limitation that ECU shown in Figure 1 carries out.
Fig. 6 is the functional block diagram of the ECU in the second embodiment of the invention.
Fig. 7 is the diagram of circuit of being controlled by the torque limitation that the ECU in the second embodiment of the invention carries out.
Fig. 8 is the functional block diagram of the ECU in the third embodiment of the invention.
Fig. 9 shows the view by the torque of torque limitation control unit restriction dynamotor shown in Figure 8.
Figure 10 is the functional block diagram of the ECU in the fourth embodiment of the invention.
Figure 11 shows the view by the torque of the torque limitation control unit restriction dynamotor of the 5th embodiment.
The specific embodiment
Below, embodiments of the invention will more specifically be described with reference to the accompanying drawings.Notice that in the accompanying drawings, same or analogous parts are represented with same way as, and will can be repeated in this description these parts.
First embodiment
Fig. 1 is the block diagram that summarily shows the transmission system of the battery-driven car in the first embodiment of the invention.With reference to figure 1, battery-driven car 100 comprises electrical storage device B, electric power supply line PL, ground wire SL, cond C, inverter 10, dynamotor MG and wheel DW.In addition, battery-driven car 100 also comprises electronic control unit (ECU) 20, temperature sensor 30, voltage sensor 40 and current sensor 50.
Electrical storage device B is connected between electric power supply line PL and the ground wire SL, and inverter 10 is connected to electrical storage device B via electric power supply line PL and ground wire SL.Cond C and electrical storage device B are connected between electric power supply line PL and the ground wire SL in parallel.Dynamotor MG comprises that the Y type as stator coil connects 3 phase coils, and is connected to inverter 10 via 3 phase cables.Dynamotor MG has output shaft, the S. A. mechanical connection of this output shaft and wheel DW.In other words, dynamotor MG is included in the battery-driven car 100 electrical motor as drive wheels DW.
Electrical storage device B is the chargeable direct supply that discharges, and is for example realized by nickel metal hydride battery, lithium ion battery or similar secondary battery.Electrical storage device B is to inverter 10 supply direct current powers.In addition, electrical storage device B is by outputing to electric power supply line PL's and the direct current power charging accepted thus from inverter 10 when the regenerative brake vehicle.Notice that electrical storage device B can be realized by the cond of big electric capacity.
Power source change between cond C level and smooth electric power supply line PL and the ground wire SL.Inverter 10 is converted to 3 cross streams voltages with the current/voltage that will receive, and this 3 cross streams voltage is outputed to dynamotor MG in response to the signal PWI operation that receives from ECU 20 on electric power supply line PL.This drives dynamotor MG, to produce torque according to specifying.In addition, when vehicle is reproduced glancing impact, inverter 10 receives by dynamotor MG because it is subjected to the 3 cross streams voltages that produce from the rotational force of wheel DW, and inverter 10 is converted to vdc according to the signal PWI that receives from ECU 20 with alternating-current voltage/AC voltage, and this vdc is outputed to electric power supply line PL.
Dynamotor MG is 3 cross streams electrical motors, and is for example realized by 3 cross streams synchronous dynamos.Dynamotor MG receives 3 cross streams electric currents from inverter 10, to produce the torque of powered vehicle.In addition, when vehicle is reproduced glancing impact, dynamotor MG produces 3 cross streams voltages, and with its output inverter 10.
Temperature sensor 30 detects the motor temperature T of dynamotor MG, and detected motor temperature T is outputed to ECU 20.Voltage sensor 40 detects the voltage Vm at cond C two ends, and detected voltage Vm is outputed to ECU 20.Current sensor 50 detects the current of electric MCRT that flows to dynamotor MG from the 3 phase cables that connect inverter 10, and detected current of electric MCRT is outputed to ECU 20.
Notice that the situation that degree that torque controlling valu TR is pressed down based on acceleration pedal and brake pedal at present by external ECU and vehicle travel is at present calculated.Car speed SV is calculated by the rotation number of the detected wheel DW of rotation sensor (not shown), the rotation number of dynamotor MG etc. by the external ECU basis.Shift pattern signal SP is the signal of indication by the selected position of gear-shift lever that is operated to select speed range.
Fig. 2 is the functional block diagram of ECU 20 shown in Figure 1.With reference to figure 2, ECU 20 comprises that temperature upper limit is provided with unit 202, and torque limitation control unit 204 calculates the unit 206 of the phase voltage be used to control motor, pwm signal converting unit 208.
Temperature upper limit is provided with unit 202 and according to torque controlling valu TR and car speed SV the temperature upper limit of dynamotor MG is set, and set temperature upper limit is outputed to torque limitation control unit 204.More specifically, when torque controlling valu TR was at most predetermined threshold value TRth or car speed SV and is at least predetermined threshold value SVth, temperature upper limit was provided with unit 202 temperature upper limit of dynamotor MG is made as TS1.When torque controlling valu TR was lower than threshold value SVth greater than threshold value TRth and car speed SV, temperature upper limit was provided with unit 202 temperature upper limit of dynamotor MG is made as the TS2 that is higher than TS1.
Torque limitation control unit 204 is based on the motor temperature T of dynamotor MG and by temperature upper limit the temperature upper limit that unit 202 is provided with is set and applies torque limitation control, with the torque of restriction from dynamotor MG output.More specifically, when the motor temperature T of dynamotor MG when the temperature upper limit (TS1 or TS2) that unit 202 is provided with is set by temperature upper limit, torque limitation control unit 204 reduces the torque controlling valu TR that receives from external ECU, and will output to unit 206 based on motor temperature T and the torque controlling valu TRR that the temperature upper limit restriction is set.
Each phase coil voltage that pwm signal converting unit 208 receives from unit 206, be used to connect/turn-off each transistorized pulse width modulation (PWM) signal of inverter 10 by its generation, and the pwm signal that is produced outputed to each transistor of inverter 10 as signal PWI.
Notice that dynamotor MG is protected in ECU 20 operations as follows: when motor temperature T when temperature upper limit is set, the torque controlling valu that torque limitation control unit 204 reduces for dynamotor MG.
The temperature upper limit of dynamotor MG is provided with unit 202 by temperature upper limit and is provided with, and described temperature upper limit is provided with unit 202 and usually the temperature upper limit of dynamotor MG is made as TS1.At this, if torque controlling valu TR is greater than threshold value TRth, and car speed SV is lower than threshold value SVth, then temperature upper limit is provided with unit 202 and judges vehicles it may slip the slope when climbing, and temperature upper limit is provided with unit 202 temperature upper limit of dynamotor MG is made as than normal higher TS2, to relax the restriction by the torque of 204 couples of dynamotor MG of torque limitation control unit.
The temperature upper limit of dynamotor MG is brought up to TS2 from TS1 can be so that dynamotor MG bears big temperature loading.But the motor temperature T of dynamotor MG seldom surpasses temperature upper limit TS1, and if motor temperature T surpass temperature upper limit TS1, then can keep motor temperature T to be no more than temperature upper limit TS2, the life-span of dynamotor MG is unaffected substantially.
Surpass under the state of temperature upper limit TS1 (this seldom occurs) at motor temperature T, normal temperature upper limit TS1 is changed into the temperature upper limit TS2 that is higher than temperature upper limit TS1 avoid slipping sloping chance for vehicle provides, therefore unified temperature upper limit that dynamotor MG is set also only prevents that dynamotor MG from avoiding hi-heat situation is more favourable than not considering vehicle-state for this.
Fig. 3 shows the view by the torque of torque limitation control unit shown in Figure 2 204 restriction dynamotor MG.With reference to figure 3, horizontal shaft is represented the motor temperature T of dynamotor MG, and vertical axis is represented the torque controlling valu TRR for dynamotor MG.When motor temperature T was at most predetermined threshold value Tth, torque limitation control unit 204 outputed to unit 206 from the torque controlling valu TR that external ECU receives as torque controlling valu TRR with reality.
If motor temperature T surpasses predetermined threshold value Tth, torque controlling valu TR torque-limiting controlling valu serves as zero to allow torque controlling valu TRR for the temperature upper limit that unit 202 settings are set by temperature upper limit.If torque controlling valu TR is greater than threshold value TRth, and car speed SV is less than threshold value SVth, and torque limitation control unit 204 torque-limiting controlling valus serve as zero to allow torque controlling valu TRR for the temperature upper limit TS2 that is higher than normal temperature upper limit TS1.
More specifically, when vehicle is climbed, and may slip the slope, the temperature upper limit of dynamotor MG is relaxed, and the result is relaxed for the restriction of the torque of dynamotor MG.
Note as shown in Figure 4, because the setting of the temperature upper limit of dynamotor MG is changed, so the threshold value of the temperature that torque limitation is begun can correspondingly change over the Th2 that is higher than Tth1 from Tth1.
Fig. 5 is a diagram of circuit how to be carried out torque limitation control by ECU shown in Figure 1.Notice that the process shown in this diagram of circuit is from main routine call, and every the set time or as long as just carry out when predetermined condition is set up.
With reference to figure 5, ECU 20 obtains the motor temperature T of dynamotor MG from temperature sensor 30, and judges whether motor temperature T has surpassed threshold temperature Tth (step S10).If not (in step S10 "No"), the torque controlling valu TR that sends from external ECU is not limited, and process finishes.
If at step S10, ECU 20 judges that motor temperature T is higher than threshold temperature Tth (in step S10 "Yes"), and ECU 20 judges that whether torque controlling valu TR is greater than predetermined threshold value TRth (step S20).If not (in step S20 "No"), ECU 20 is made as temperature upper limit TS1 the temperature upper limit (step S50) of dynamotor MG.
If at step S20, ECU 20 judges that torque controlling valu TR is higher than threshold value TRth (in step S20 "Yes"), and ECU 20 judges that whether car speed SV is less than predetermined threshold value SVth (step S30).If not (in step S30 "No"), ECU 20 proceeds to step 50.
If at step S30, ECU 20 judges car speed SV less than threshold value SVth (in step S30 "Yes"), and the temperature upper limit TS2 that ECU 20 will be higher than temperature upper limit TS1 is made as the temperature upper limit (step S40) of dynamotor MG.In other words, when torque controlling valu TR greater than threshold value TRth and car speed SV during less than threshold value SVth, ECU 20 judges that vehicles may slip the slope when climbing, and in torque limitation control, the temperature upper limit TS2 that ECU 20 will be higher than normal temperature upper limit TS1 is made as the temperature upper limit of dynamotor MG.
At step S40 or S50, the temperature upper limit of dynamotor MG is set up, and ECU 20 carries out torque limitation control with the torque controlling valu (step S60) of restriction for dynamotor MG based on set temperature upper limit TS1 or TS2 and the motor temperature T that receives from temperature sensor 30.
Therefore, in first embodiment, when dynamotor MG provides big torque and vehicle to have low car speed, determine that vehicle is in climbing and may slip the slope.Temperature upper limit is provided with unit 202 temperature upper limit TS2 is set in torque limitation control unit 204, and this temperature upper limit TS2 is higher than the temperature upper limit TS1 of normal setting.The temperature upper limit of dynamotor MG is enhanced, to relax the restriction to the torque of dynamotor MG.Therefore in first embodiment, vehicle can be avoided slipping the possibility on slope and improve.
Second embodiment
Second embodiment provides a kind of battery-driven car, its transmission system with reference to figure 1 at the transmission system of the battery-driven car 100 described in first embodiment textural identical.
Fig. 6 is the functional block diagram of the ECU in the second embodiment of the invention.With reference to figure 6, ECU 20A textural corresponding to reference to figure 2 at the ECU 20 described in first embodiment, but difference is that temperature upper limit is provided with unit 202 and by temperature upper limit unit 202A is set and substitutes.
Temperature upper limit is provided with unit 202A and by the shift pattern signal SP of the selected position of gear-shift lever the temperature upper limit of dynamotor MG is set based on indication, and set temperature upper limit is outputed to torque limitation control unit 204.More specifically, for the shift pattern in the scope that is in outside the reverse gear (R), temperature upper limit is provided with unit 202A the temperature upper limit of dynamotor MG is made as TS1.For the shift pattern that is in reverse gear (R) scope, temperature upper limit is provided with unit 202A the temperature upper limit of dynamotor MG is made as the TS2 that is higher than TS1.
All the other structures of ECU 20A with reference to figure 2 identical at the ECU 20 described in first embodiment.
The temperature upper limit of dynamotor MG is provided with unit 202A by temperature upper limit and is provided with, and described temperature upper limit is provided with unit 202A and usually the temperature upper limit of dynamotor MG is made as TS1.At this, for the shift pattern that is in reverse gear (R) scope, temperature upper limit is provided with unit 202A and judges when the vehicle afterbody is advanced climbing forward that it may slip the slope, and temperature upper limit is provided with unit 202A the temperature upper limit of dynamotor MG is made as than normal higher TS2, to relax the restriction by the torque of 204 couples of dynamotor MG of torque limitation control unit.
Fig. 7 is the diagram of circuit of being controlled by the torque limitation that the ECU 20A in the second embodiment of the invention carries out.Process shown in this diagram of circuit is also from main routine call, and every the set time or as long as just carry out when predetermined condition is set up.
With reference to figure 7, but this diagram of circuit shows corresponding to shown in Figure 5 step S20 and the S30 process of being replaced by step S35 wherein.More specifically, if determined that at step S10 motor temperature T is higher than threshold temperature Tth (in step S10 "Yes"), ECU 20A judges according to shift pattern signal SP whether shift pattern is in reverse gear (R) scope (step S35).If ECU 20A judges shift pattern and is in that (in step S35 "No") ECU 20A proceeds to step S50 in the scope outside reverse gear (R) scope, is made as temperature upper limit TS1 with the temperature upper limit with dynamotor MG.
If determine that at step S35 shift pattern is in (in step S35 "Yes") in reverse gear (R) scope, ECU 20A proceeds to step S40, is made as the temperature upper limit TS2 higher than temperature upper limit TS1 with the temperature upper limit with dynamotor MG.In other words, for the shift pattern that is in reverse gear (R) scope, ECU 20A judges when the vehicle afterbody is advanced climbing forward that it may slip the slope, and in torque limitation control, ECU 20A is made as the temperature upper limit TS2 that is higher than temperature upper limit TS1 with the temperature upper limit of dynamotor MG.
It may slip the state on slope when therefore in a second embodiment, the shift pattern state that is in reverse gear (R) scope was judged as the vehicle afterbody and advances climbing forward.At this moment, temperature upper limit is provided with unit 202A temperature upper limit TS2 is set in torque limitation control unit 204, and this temperature upper limit TS2 is higher than the temperature upper limit TS1 of normal setting.Therefore, the temperature upper limit of dynamotor MG is enhanced, to relax the restriction to the torque of dynamotor MG.Therefore in a second embodiment, advance the forward vehicle of climbing of afterbody can be avoided slipping the possibility on slope and improves.
Notice that in a second embodiment, the present invention is equipped with dynamotor and the combustion engine vehicle as propulsion source.It can be applied to only rely on the power operated vehicle of driving of dynamotor when afterbody is advanced forward, this is because advance with when climbing forward and may overturn forward or slip when sloping when this vehicle is operated to afterbody, can avoid overturning forward or slipping sloping chance so that vehicle has.
The 3rd embodiment
In first and second embodiment, when vehicle may slip the slope, the temperature upper limit of dynamotor MG was relaxed, to relax the restriction to torque.The 3rd and the embodiment of back in, when vehicle may slip the slope, the torque in the unit time reduced speed and is changed, and was reduced to limit corresponding to motor temperature to allow torque by the longer time period.Thereby this can cause vehicle may slip the possibility on slope improving so that avoided that torque is restricted to limit fast.
The 3rd embodiment provides a kind of battery-driven car, its transmission system with reference to figure 1 at the transmission system of the battery-driven car 100 described in first embodiment textural identical.
Fig. 8 is the functional block diagram of the ECU in the third embodiment of the invention.With reference to figure 8, ECU 20B textural corresponding to reference to figure 2 at the ECU 20 described in first embodiment, but difference is, temperature upper limit is provided with unit 202 and torque limitation control unit 204 and is reduced respectively that speed is provided with unit 203 and torque limitation control unit 204A substitutes.
Reduce speed and unit 203 is set according to torque controlling valu TR and car speed SV for dynamotor MG, the torque that is arranged in the unit time of using in the torque limitation control of being carried out by torque limitation control unit 204A reduces speed, and the speed that reduces that will be provided with outputs to torque limitation control unit 204A.More specifically, if torque controlling valu TR is at most predetermined threshold value TRth or car speed SV is at least predetermined threshold value SVth, reduces speed and unit 203 is set torque is reduced speed is made as R1.If torque controlling valu TR is lower than threshold value SVth greater than threshold value TRth and car speed SV, reduces speed and unit 203 is set torque is reduced speed is made as the R2 that is lower than R1.
According to by reducing speed the speed that reduces that unit 203 is provided with being set, torque limitation control unit 204A is based on motor temperature T and the default temperature upper limit of dynamotor MG, and control is to the restriction of torque.More specifically, as the motor temperature T of dynamotor MG during near set temperature upper limit, torque limitation control unit 204A is to be provided with the speed that reduces that unit 203 receives and to reduce the torque controlling valu TR that receives from external ECU from reducing speed.Torque limitation control unit 204A will output to unit 206 based on the torque controlling valu TRR of motor temperature T and the restriction of set temperature upper limit.
All the other structures of ECU 20B with reference to figure 2 identical at the ECU 20 described in first embodiment.
Fig. 9 shows the view by the torque of torque limitation control unit 204A restriction dynamotor MG shown in Figure 8.With reference to figure 9, horizontal shaft is represented the time, and vertical axis is represented the torque controlling valu TRR for dynamotor MG.Line k1 and k2 show respectively and understand how torque controlling valu TRR changes when reducing speed and unit 203 settings are set reduce speed R1 and R2.
At moment t0, motor temperature T surpasses predetermined threshold value Tth.In response, torque limitation control unit 204A torque-limiting is to be provided with the speed that reduces that unit 203 receives and to reduce torque controlling valu TRR from reducing speed.At this, if torque controlling valu TR is lower than threshold value SVth greater than threshold value TRth and car speed SV, torque limitation control unit 204A reduces the torque controlling valu to reduce speed R2, wherein reduces the subnormal speed R1 that reduces of speed R2.Therefore, when vehicle climbing and may slip the slope time, the torque controlling valu is reduced to corresponding to the used time period of the limit of motor temperature T increased.
Therefore in the 3rd embodiment, when the vehicle climbing and may slip the slope time, the torque of in torque limitation control, using reduce speed from reduce normally speed R1 become be lower than reduce speed R1 reduce speed R2.Therefore among the 3rd embodiment, can utilize the longer time period that the torque controlling valu is reduced to the cooresponding limit with motor temperature T, to increase the possibility that to avoid vehicle slide slope.
The 4th embodiment
The 4th embodiment provides a kind of battery-driven car, its transmission system with reference to figure 1 at the transmission system of the battery-driven car 100 described in first embodiment textural identical.
Figure 10 is the functional block diagram of the ECU in the fourth embodiment of the invention.With reference to Figure 10, ECU20C textural corresponding to reference to figure 8 at the ECU 20B described in the 3rd embodiment, but difference be, reduce speed and unit 203 is set is reduced speed and unit 203A is set substitutes.
Reduce speed and unit 203A is set reduces speed, and the set speed that reduces is outputed to torque limitation control unit 204A based on the torque that indication is arranged in the unit time of using in the torque limitation control of being carried out by torque limitation control unit 204A by the shift pattern signal SP of the selected position of gear-shift lever.More specifically, for the shift pattern in the scope that is in outside the reverse gear (R), reduce speed and unit 203A is set torque is reduced speed is made as R1.For the shift pattern that is in reverse gear (R) scope, reduce speed and unit 203A is set torque is reduced speed is made as the R2 that is lower than R1.
All the other structures of ECU 20C with reference to figure 8 identical at the ECU 20B described in the 3rd embodiment.
Therefore in the 4th embodiment, when vehicle may slip the slope, the torque in the unit time reduced speed and is lowered to less than the torque under the normal circumstances and reduces speed, to allow the utilizing longer time period that torque is reduced to and the cooresponding limit of motor temperature.Therefore, third and fourth embodiment allows the sizable degree of temperature build-up of dynamotor MG.In the 6th embodiment of the 5th embodiment and back, when vehicle may slip the slope, torque is reduced to be added to corresponding to the used time period of the limit of motor temperature is longer than normal conditions, and when setting reduces speed, also considered to improve the temperature of dynamotor MG.
The 5th embodiment provides a kind of battery-driven car, its transmission system with reference to figure 1 at the transmission system of the battery-driven car 100 described in first embodiment textural identical.
With reference to figure 8, the 5th embodiment provides ECU 20D, its textural corresponding to the ECU 20B among the 3rd embodiment, but difference is, reduces speed and unit 203 and torque limitation control unit 204A are set are reduced respectively that speed is provided with unit 203B and torque limitation control unit 204B substitutes.
Reduce speed and unit 203B is set according to torque controlling valu TR and car speed SV for dynamotor MG, the torque that is arranged in the unit time of using in the torque limitation control of being carried out by torque limitation control unit 204B reduces speed, and the speed that reduces that will be provided with outputs to torque limitation control unit 204B.More specifically, if torque controlling valu TR is at most predetermined threshold value TRth or car speed SV is at least predetermined threshold value SVth, reduces speed and unit 203B is set torque is reduced speed is made as R1.If torque controlling valu TR is lower than threshold value SVth greater than threshold value TRth and car speed SV, reduce speed and unit 203B is set is provided with two and reduces speed, promptly be higher than torque that torque reduces speed R1 and reduce speed R3 and be lower than the torque that torque reduces speed R1 to reduce speed R4.
According to by reducing speed the speed that reduces that unit 203B is provided with being set, torque limitation control unit 204B is based on motor temperature T and the default temperature upper limit of dynamotor MG, and control is to the restriction of torque.More specifically, as the motor temperature T of dynamotor MG during near set temperature upper limit, torque limitation control unit 204B is to be provided with the speed that reduces that unit 203B receives and to reduce the torque controlling valu TR that receives from external ECU from reducing speed.
At this, when torque limitation control unit 204B is provided with unit 203B and receives two when reducing speed R3 and R4 from reducing speed, torque limitation control unit 204B is reduced to the torque controlling valu torque limit of determining based on motor temperature T and set temperature upper limit in two steps.More specifically, torque limitation control unit 204B is reduced to torque limit with the torque controlling valu in the following way: at first reduce the torque controlling valu to be higher than the speed R3 that reduces that reduces speed R1 normally, reduce the torque controlling valu with the subnormal speed R4 that reduces that reduces speed R1 then.Then, torque limitation control unit 204B will output to unit 206 according to the torque controlling valu TRR of motor temperature T and the restriction of set temperature upper limit.
Figure 11 shows the view by the torque of the restriction of the torque limitation control unit 204B among the 5th embodiment dynamotor MG.With reference to Figure 11, horizontal shaft is represented the time, and vertical axis is represented the torque controlling valu TRR for dynamotor MG.Line k1 shows and understands when reducing speed and unit 203B is set is provided with how torque controlling valu TRR changes when reducing speed R1, and line k3 and k4 show respectively and understand how torque controlling valu TRR changes when reducing speed and 203B setting in unit is set reduces speed R3 and R4.
At moment t0, motor temperature T surpasses predetermined threshold value Tth.In response, torque limitation control unit 204B torque-limiting is to be provided with the speed that reduces that unit 203B receives and to reduce torque controlling valu TRR from reducing speed.At this, if torque controlling valu TR is lower than threshold value SVth greater than threshold value TRth and car speed SV, then at least up to obtaining to make vehicle can not slip till the torque TRS on slope, torque limitation control unit 204B reduces the torque controlling valu to be higher than the speed R3 that reduces that reduces speed R1 normally.After this, torque limitation control unit 204B reduces the torque controlling valu to be lower than the speed R4 that reduces that reduces speed R1.
Therefore, when torque controlling valu TR was lower than threshold value SVth greater than threshold value TRth and car speed SV, promptly when vehicle may slip the slope, the torque in the unit time reduced speed and is divided into two stages.This is to prevent that in order to consider motor from avoiding high temperature, allows the torque controlling valu to be reduced to limit corresponding to motor temperature T simultaneously in the time period that increases.More specifically, if motor temperature T surpasses threshold value Tth, the torque controlling valu at first reduces to be higher than the speed R3 that reduces that normally reduces speed R1, rising speed with remarkable reduction motor temperature, and then reduce to be lower than the speed R4 that reduces that normally reduces speed R1, in the reasonable time section, reach limit to guarantee the torque controlling valu that constantly reduces corresponding to motor temperature T.
Therefore in the 5th embodiment, when the vehicle of climbing may slip the slope, the torque of using in torque limitation control reduced speed and was divided into for two steps, promptly with rate of deceleration R3 (＞R1) and with reduce speed R4 (＜R1), reduce torque.Therefore in the 5th embodiment, the torque controlling valu can utilize the time period of growth to be reduced to limit corresponding to motor temperature T, can avoid vehicle to slip the slope reducing the possibility of the intensification of dynamotor MG simultaneously to increase.
The 6th embodiment
The 6th embodiment provides a kind of battery-driven car, its transmission system with reference to figure 1 at the transmission system of the battery-driven car 100 described in first embodiment textural identical.
With reference to Figure 10, the 6th embodiment provides ECU 20E, its textural corresponding at the ECU 20C described in the 4th embodiment, but difference is, reduces speed and unit 203A and torque limitation control unit 204A are set are reduced respectively that speed is provided with unit 203C and torque limitation control unit 204B substitutes.
Reduce speed and unit 203C is set reduces speed, and the set speed that reduces is outputed to torque limitation control unit 204B based on the torque that indication is arranged in the unit time of using in the torque limitation control of being carried out by torque limitation control unit 204B by the shift pattern signal SP of the selected position of gear-shift lever.More specifically, for the shift pattern in the scope that is in outside the reverse gear (R), reduce speed and unit 203C is set torque is reduced speed is made as R1.For the shift pattern that is in reverse gear (R) scope, reduce speed and unit 203C is set is provided with two and reduces speed, promptly be higher than reduce speed R1 reduce speed R3 and be lower than reduce speed R1 reduce speed R4.
Torque limitation control unit 204B is described in the 5th embodiment.Torque limitation control unit 204B is as with reference to the torque of the described control dynamotor of Figure 11 MG.
Therefore in the 6th embodiment, when the vehicle of climbing forward when afterbody may slip the slope, the torque of using in torque limitation control reduced speed and was divided into for two steps, promptly with rate of deceleration R3 (＞R1) and with reduce speed R4 (＜R1), reduce torque.Therefore in the 6th embodiment, the torque controlling valu can utilize the time period of growth to be reduced to limit corresponding to motor temperature T, can avoid vehicle to slip the slope reducing the possibility of the intensification of dynamotor MG simultaneously to increase.
In the 5th and the 6th embodiment, the torque of using in torque limitation control reduces speed and is divided into two stages and reduces torque.Perhaps, can be divided into more than two stage or infinitely reduce torque.More specifically, torque can be reduced to limit as follows: reduce speed and at first be set as and be higher than normally, progressively or infinitely reduce subsequently.
In the first, the 3rd and the 5th embodiment, according to torque controlling valu TR with car speed SV changes temperature upper limit or the torque in the unit time reduces speed.Perhaps, torque controlling valu TR can be by utilizing the detected torque actual numerical value of torque sensor, current of electric MCRT by dynamotor MG to wait to substitute.
In the second, the 4th and the 6th embodiment, whether be in the torque that reverse gear (R) scope changes in temperature upper limit or unit time according to shift pattern and reduce speed.Perhaps, hand of rotation that can be by judging dynamotor MG and judge vehicle thus whether afterbody was before advanced that the torque that changes in temperature upper limit or unit time reduces speed.
Though the foregoing description has been described the battery-driven car by dynamotor MG drive wheels DW respectively, the present invention also goes for comprising and is equipped with combustion engine as the motor vehicle driven by mixed power of propulsion source and be equipped with fuel cell and replace the scope of electrical storage device B as the fuel-cell vehicle of direct supply.
In addition, between electrical storage device B and inverter 10 step-up transformer can be set, it receives the vdc from electrical storage device B, this voltage that boosts, and boost voltage is fed to inverter 10.
In the above description, dynamotor MG is corresponding to " motor " of the present invention.Temperature sensor 30 is corresponding to " temperature detecting unit " of the present invention.Torque limitation control unit 204,204A and 204B correspond respectively to " torque limiter " of the present invention.Unit 202 is set temperature upper limit and 202A corresponds respectively to " unit is set, and its state based on described vehicle is determined the described temperature upper limit of described motor, and determined temperature upper limit is set " of the present invention in described torque limiter.Reduce speed unit 203 is set, 203A, 203B and 203C correspond respectively to " unit is set, and its state based on described vehicle determines to reduce speed, and the determined speed that reduces is set in described torque limiter " of the present invention.
Should be appreciated that embodiment disclosed herein is being exemplary with nonrestrictive aspect each.Scope of the present invention is by the claim definition of term, rather than above-mentioned explanation limits, and is intended to comprise and drops on the scope that is equal to the claim clause and any modification in the implication.
Claims (25)
1. electric machinery control device that the motor of the power that produces powered vehicle is controlled comprises:
Temperature-detecting device, it is used to detect the temperature of described motor;
Torque restricting means, it is used for coming the torque of described motor is limited based on the described temperature that is obtained by described temperature-detecting device detection and the temperature upper limit that is provided with of described motor; And
Setting device, it is used for determining based on the state of described vehicle the described temperature upper limit of described motor, and definite described temperature upper limit is set in described torque restricting means.
2. electric machinery control device according to claim 1, the described state of wherein said vehicle comprise at least one in the speed of described vehicle, described torque and the shift pattern.
3. electric machinery control device according to claim 2, wherein when described torque is lower than second threshold value greater than first threshold and described speed, described setting device is provided with second temperature upper limit in described torque restricting means, described second temperature upper limit is higher than first temperature upper limit of normal setting.
4. electric machinery control device according to claim 2, wherein when described shift pattern is in the reverse gear scope, described setting device is provided with second temperature upper limit in described torque restricting means, described second temperature upper limit is higher than first temperature upper limit of normal setting.
5. electric machinery control device that the motor of the power that produces powered vehicle is controlled comprises:
Temperature-detecting device, it is used to detect the temperature of described motor;
Torque restricting means, it is used for coming the torque of described motor is limited with the speed that reduces in the unit time that is provided with based on the described temperature that is obtained by described temperature-detecting device detection and the temperature upper limit of described motor; And
Setting device, it is used for determining the described speed that reduces based on the state of described vehicle, and definite described speed that reduces is set in described torque restricting means.
6. electric machinery control device according to claim 5, the described state of wherein said vehicle comprise at least one in the speed of described vehicle, described torque and the shift pattern.
7. electric machinery control device according to claim 6, wherein:
When described torque restricting means reduced described torque, described torque restricting means was reduced to described torque the definite limit of described temperature that is obtained by detection; And
When described torque is lower than second threshold value greater than first threshold and described speed, described setting device is provided with the described speed that reduces in described torque restricting means, make compared to normal circumstances, after described torque begins to reduce, reach described limit to described torque before elapsed time Duan Gengchang.
8. electric machinery control device according to claim 6, wherein:
When described torque restricting means reduced described torque, described torque restricting means was reduced to described torque the definite limit of temperature that is obtained by described detection; And
When described shift pattern is in the reverse gear scope, described setting device is provided with the described speed that reduces in described torque restricting means, make compared to normal circumstances, after described torque begins to reduce, reach described limit to described torque before elapsed time Duan Gengchang.
9. according to claim 7 or 8 described electric machinery control devices, wherein said setting device is provided with second and reduces speed in described torque restricting means, and described second reduces speed is lower than first of normal setting and reduces speed.
10. according to claim 7 or 8 described electric machinery control devices, wherein when described torque begins to reduce, described setting device at first is provided with in described torque restricting means and is higher than first of normal setting and reduces the 3rd of speed and reduce speed, is provided with subsequently to be lower than described first and to reduce the 4th of speed and reduce speed in described torque restricting means.
11. the electric machinery control device that the motor of the power of generation powered vehicle is controlled comprises:
Temperature detecting unit, it detects the temperature of described motor; And
Controller, it carries out series of steps,
Described controller is determined the temperature upper limit of described motor based on the state of described vehicle, and based on detecting described temperature and the described temperature upper limit that obtains by described temperature detecting unit, comes the torque of described motor is limited.
12. electric machinery control device according to claim 11, the described state of wherein said vehicle comprise in the speed of described vehicle, described torque and the shift pattern at least one.
13. electric machinery control device according to claim 12, wherein when described torque was lower than second threshold value greater than first threshold and described speed, described controller was made as described temperature upper limit second temperature upper limit that is higher than normal first temperature upper limit.
14. electric machinery control device according to claim 12, wherein when described shift pattern was in the reverse gear scope, described controller was made as described temperature upper limit second temperature upper limit that is higher than normal first temperature upper limit.
15. the electric machinery control device that the motor of the power of generation powered vehicle is controlled comprises:
Temperature detecting unit, it detects the temperature of described motor; And
Controller, it carries out series of steps,
Described controller is determined the speed that reduces in unit time of torque of described motor based on the state of described vehicle, and, come the described torque of described motor is limited with the described speed of determining that reduces based on the described temperature that obtains by described temperature detecting unit detection and the temperature upper limit of described motor.
16. electric machinery control device according to claim 15, the described state of wherein said vehicle comprise in the speed of described vehicle, described torque and the shift pattern at least one.
17. electric machinery control device according to claim 16, wherein:
When described controller reduced described torque, described controller was reduced to described torque the definite limit of described temperature that is obtained by detection; And when described torque is lower than second threshold value greater than first threshold and described speed, described controller is determined the described speed that reduces, make compared to normal circumstances, after described torque begins to reduce, reach described limit to described torque before elapsed time Duan Gengchang.
18. electric machinery control device according to claim 16, wherein:
When described controller reduced described torque, described controller was reduced to described torque the definite limit of described temperature that is obtained by detection; And when described shift pattern was in the reverse gear scope, described controller was determined the described speed that reduces, and made compared to normal circumstances, after described torque begins to reduce, reach described limit to described torque before elapsed time Duan Gengchang.
19. according to claim 17 or 18 described electric machinery control devices, wherein said controller is made as the described speed that reduces second and reduces speed, described second reduces speed subnormal first reduces speed.
20. according to claim 17 or 18 described electric machinery control devices, wherein when described torque begins to reduce, described controller is made as the described speed that reduces to be higher than normal first and to reduce the 3rd of speed and reduce speed, subsequently the described speed that reduces is made as and is lower than described first and reduces the 4th of speed and reduce speed.
21. an elec. vehicle comprises:
Motor, it produces the power of powered vehicle;
Wheel, the output shaft mechanical connection of itself and described motor; And
As each described electric machinery control device among claim 1-8 and the 11-18.
22. the method that the motor of the power of generation powered vehicle is controlled may further comprise the steps:
Based on the state of described vehicle, determine the temperature upper limit of described motor; And
The temperature and the described temperature upper limit of the described motor that obtains based on detection limit the torque of described motor.
23. method according to claim 22, the described state of wherein said vehicle comprise in the speed of described vehicle, described torque and the shift pattern at least one.
24. method according to claim 23, wherein said determining step comprise when described torque is lower than second threshold value greater than first threshold and described speed, described temperature upper limit are made as second temperature upper limit that is higher than normal first temperature upper limit.
25. method according to claim 23, wherein said determining step comprise that when described shift pattern is in the reverse gear scope described temperature upper limit is set to be higher than second temperature upper limit of normal first temperature upper limit.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006003473A JP4211788B2 (en) | 2006-01-11 | 2006-01-11 | Electric motor control device and electric vehicle equipped with the same |
| JP003473/2006 | 2006-01-11 | ||
| PCT/JP2006/326420 WO2007080819A1 (en) | 2006-01-11 | 2006-12-28 | Device for controlling electric motor, electric vehicle with the device, and method for controlling electric motor |
Publications (2)
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| CN101356072A true CN101356072A (en) | 2009-01-28 |
| CN101356072B CN101356072B (en) | 2011-01-12 |
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| CN2006800509157A Expired - Fee Related CN101356072B (en) | 2006-01-11 | 2006-12-28 | Device for controlling electric motor, electric vehicle with the device, and method for controlling electric motor |
Country Status (5)
| Country | Link |
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| US (1) | US8096919B2 (en) |
| JP (1) | JP4211788B2 (en) |
| CN (1) | CN101356072B (en) |
| DE (1) | DE112006003648T5 (en) |
| WO (1) | WO2007080819A1 (en) |
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| CN103338966B (en) * | 2011-02-03 | 2015-08-26 | 丰田自动车株式会社 | Vehicle and control method for vehicle |
| CN103386981A (en) * | 2012-05-07 | 2013-11-13 | 福特全球技术公司 | System for controlling powertrain component for hill-holding in hybrid electric vehicle |
| US9688263B2 (en) | 2012-05-07 | 2017-06-27 | Ford Global Technologies, Llc | Controlling powertrain components for hill-holding in a hybrid electric vehicle |
| CN110313129A (en) * | 2018-05-29 | 2019-10-08 | 深圳市大疆创新科技有限公司 | Holder and motor control method, device |
| CN112448655A (en) * | 2019-08-29 | 2021-03-05 | 比亚迪股份有限公司 | Over-temperature protection method and device for engine, vehicle and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112006003648T5 (en) | 2008-11-20 |
| CN101356072B (en) | 2011-01-12 |
| JP4211788B2 (en) | 2009-01-21 |
| US20090288634A1 (en) | 2009-11-26 |
| US8096919B2 (en) | 2012-01-17 |
| WO2007080819A1 (en) | 2007-07-19 |
| JP2007189764A (en) | 2007-07-26 |
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